source: trunk/src/opengl/glut/glut_teapot.c

Last change on this file was 2689, checked in by jeroen, 26 years ago

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1/* $Id: glut_teapot.c,v 1.2 2000-02-09 08:46:17 jeroen Exp $ */
2/* Copyright (c) Mark J. Kilgard, 1994. */
3
4/**
5(c) Copyright 1993, Silicon Graphics, Inc.
6
7ALL RIGHTS RESERVED
8
9Permission to use, copy, modify, and distribute this software
10for any purpose and without fee is hereby granted, provided
11that the above copyright notice appear in all copies and that
12both the copyright notice and this permission notice appear in
13supporting documentation, and that the name of Silicon
14Graphics, Inc. not be used in advertising or publicity
15pertaining to distribution of the software without specific,
16written prior permission.
17
18THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU
19"AS-IS" AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR
20OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF
21MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO
22EVENT SHALL SILICON GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE
23ELSE FOR ANY DIRECT, SPECIAL, INCIDENTAL, INDIRECT OR
24CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER,
25INCLUDING WITHOUT LIMITATION, LOSS OF PROFIT, LOSS OF USE,
26SAVINGS OR REVENUE, OR THE CLAIMS OF THIRD PARTIES, WHETHER OR
27NOT SILICON GRAPHICS, INC. HAS BEEN ADVISED OF THE POSSIBILITY
28OF SUCH LOSS, HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29ARISING OUT OF OR IN CONNECTION WITH THE POSSESSION, USE OR
30PERFORMANCE OF THIS SOFTWARE.
31
32US Government Users Restricted Rights
33
34Use, duplication, or disclosure by the Government is subject to
35restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
36(c)(1)(ii) of the Rights in Technical Data and Computer
37Software clause at DFARS 252.227-7013 and/or in similar or
38successor clauses in the FAR or the DOD or NASA FAR
39Supplement. Unpublished-- rights reserved under the copyright
40laws of the United States. Contractor/manufacturer is Silicon
41Graphics, Inc., 2011 N. Shoreline Blvd., Mountain View, CA
4294039-7311.
43
44OpenGL(TM) is a trademark of Silicon Graphics, Inc.
45*/
46
47#include "glutint.h"
48
49/* Rim, body, lid, and bottom data must be reflected in x and
50 y; handle and spout data across the y axis only. */
51
52static int patchdata[][16] =
53{
54 /* rim */
55 {102, 103, 104, 105, 4, 5, 6, 7, 8, 9, 10, 11,
56 12, 13, 14, 15},
57 /* body */
58 {12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23,
59 24, 25, 26, 27},
60 {24, 25, 26, 27, 29, 30, 31, 32, 33, 34, 35, 36,
61 37, 38, 39, 40},
62 /* lid */
63 {96, 96, 96, 96, 97, 98, 99, 100, 101, 101, 101,
64 101, 0, 1, 2, 3,},
65 {0, 1, 2, 3, 106, 107, 108, 109, 110, 111, 112,
66 113, 114, 115, 116, 117},
67 /* bottom */
68 {118, 118, 118, 118, 124, 122, 119, 121, 123, 126,
69 125, 120, 40, 39, 38, 37},
70 /* handle */
71 {41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52,
72 53, 54, 55, 56},
73 {53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64,
74 28, 65, 66, 67},
75 /* spout */
76 {68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
77 80, 81, 82, 83},
78 {80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91,
79 92, 93, 94, 95}
80};
81/* *INDENT-OFF* */
82
83static float cpdata[][3] =
84{
85 {0.2, 0, 2.7}, {0.2, -0.112, 2.7}, {0.112, -0.2, 2.7}, {0,
86 -0.2, 2.7}, {1.3375, 0, 2.53125}, {1.3375, -0.749, 2.53125},
87 {0.749, -1.3375, 2.53125}, {0, -1.3375, 2.53125}, {1.4375,
88 0, 2.53125}, {1.4375, -0.805, 2.53125}, {0.805, -1.4375,
89 2.53125}, {0, -1.4375, 2.53125}, {1.5, 0, 2.4}, {1.5, -0.84,
90 2.4}, {0.84, -1.5, 2.4}, {0, -1.5, 2.4}, {1.75, 0, 1.875},
91 {1.75, -0.98, 1.875}, {0.98, -1.75, 1.875}, {0, -1.75,
92 1.875}, {2, 0, 1.35}, {2, -1.12, 1.35}, {1.12, -2, 1.35},
93 {0, -2, 1.35}, {2, 0, 0.9}, {2, -1.12, 0.9}, {1.12, -2,
94 0.9}, {0, -2, 0.9}, {-2, 0, 0.9}, {2, 0, 0.45}, {2, -1.12,
95 0.45}, {1.12, -2, 0.45}, {0, -2, 0.45}, {1.5, 0, 0.225},
96 {1.5, -0.84, 0.225}, {0.84, -1.5, 0.225}, {0, -1.5, 0.225},
97 {1.5, 0, 0.15}, {1.5, -0.84, 0.15}, {0.84, -1.5, 0.15}, {0,
98 -1.5, 0.15}, {-1.6, 0, 2.025}, {-1.6, -0.3, 2.025}, {-1.5,
99 -0.3, 2.25}, {-1.5, 0, 2.25}, {-2.3, 0, 2.025}, {-2.3, -0.3,
100 2.025}, {-2.5, -0.3, 2.25}, {-2.5, 0, 2.25}, {-2.7, 0,
101 2.025}, {-2.7, -0.3, 2.025}, {-3, -0.3, 2.25}, {-3, 0,
102 2.25}, {-2.7, 0, 1.8}, {-2.7, -0.3, 1.8}, {-3, -0.3, 1.8},
103 {-3, 0, 1.8}, {-2.7, 0, 1.575}, {-2.7, -0.3, 1.575}, {-3,
104 -0.3, 1.35}, {-3, 0, 1.35}, {-2.5, 0, 1.125}, {-2.5, -0.3,
105 1.125}, {-2.65, -0.3, 0.9375}, {-2.65, 0, 0.9375}, {-2,
106 -0.3, 0.9}, {-1.9, -0.3, 0.6}, {-1.9, 0, 0.6}, {1.7, 0,
107 1.425}, {1.7, -0.66, 1.425}, {1.7, -0.66, 0.6}, {1.7, 0,
108 0.6}, {2.6, 0, 1.425}, {2.6, -0.66, 1.425}, {3.1, -0.66,
109 0.825}, {3.1, 0, 0.825}, {2.3, 0, 2.1}, {2.3, -0.25, 2.1},
110 {2.4, -0.25, 2.025}, {2.4, 0, 2.025}, {2.7, 0, 2.4}, {2.7,
111 -0.25, 2.4}, {3.3, -0.25, 2.4}, {3.3, 0, 2.4}, {2.8, 0,
112 2.475}, {2.8, -0.25, 2.475}, {3.525, -0.25, 2.49375},
113 {3.525, 0, 2.49375}, {2.9, 0, 2.475}, {2.9, -0.15, 2.475},
114 {3.45, -0.15, 2.5125}, {3.45, 0, 2.5125}, {2.8, 0, 2.4},
115 {2.8, -0.15, 2.4}, {3.2, -0.15, 2.4}, {3.2, 0, 2.4}, {0, 0,
116 3.15}, {0.8, 0, 3.15}, {0.8, -0.45, 3.15}, {0.45, -0.8,
117 3.15}, {0, -0.8, 3.15}, {0, 0, 2.85}, {1.4, 0, 2.4}, {1.4,
118 -0.784, 2.4}, {0.784, -1.4, 2.4}, {0, -1.4, 2.4}, {0.4, 0,
119 2.55}, {0.4, -0.224, 2.55}, {0.224, -0.4, 2.55}, {0, -0.4,
120 2.55}, {1.3, 0, 2.55}, {1.3, -0.728, 2.55}, {0.728, -1.3,
121 2.55}, {0, -1.3, 2.55}, {1.3, 0, 2.4}, {1.3, -0.728, 2.4},
122 {0.728, -1.3, 2.4}, {0, -1.3, 2.4}, {0, 0, 0}, {1.425,
123 -0.798, 0}, {1.5, 0, 0.075}, {1.425, 0, 0}, {0.798, -1.425,
124 0}, {0, -1.5, 0.075}, {0, -1.425, 0}, {1.5, -0.84, 0.075},
125 {0.84, -1.5, 0.075}
126};
127
128static float tex[2][2][2] =
129{
130 { {0, 0},
131 {1, 0}},
132 { {0, 1},
133 {1, 1}}
134};
135
136/* *INDENT-ON* */
137
138static void
139teapot(GLint grid, GLdouble scale, GLenum type)
140{
141 float p[4][4][3], q[4][4][3], r[4][4][3], s[4][4][3];
142 long i, j, k, l;
143
144 glPushAttrib(GL_ENABLE_BIT | GL_EVAL_BIT);
145 glEnable(GL_AUTO_NORMAL);
146 glEnable(GL_NORMALIZE);
147 glEnable(GL_MAP2_VERTEX_3);
148 glEnable(GL_MAP2_TEXTURE_COORD_2);
149 glPushMatrix();
150 glRotatef(270.0, 1.0, 0.0, 0.0);
151 glScalef(0.5 * scale, 0.5 * scale, 0.5 * scale);
152 glTranslatef(0.0, 0.0, -1.5);
153 for (i = 0; i < 10; i++) {
154 for (j = 0; j < 4; j++) {
155 for (k = 0; k < 4; k++) {
156 for (l = 0; l < 3; l++) {
157 p[j][k][l] = cpdata[patchdata[i][j * 4 + k]][l];
158 q[j][k][l] = cpdata[patchdata[i][j * 4 + (3 - k)]][l];
159 if (l == 1)
160 q[j][k][l] *= -1.0;
161 if (i < 6) {
162 r[j][k][l] =
163 cpdata[patchdata[i][j * 4 + (3 - k)]][l];
164 if (l == 0)
165 r[j][k][l] *= -1.0;
166 s[j][k][l] = cpdata[patchdata[i][j * 4 + k]][l];
167 if (l == 0)
168 s[j][k][l] *= -1.0;
169 if (l == 1)
170 s[j][k][l] *= -1.0;
171 }
172 }
173 }
174 }
175 glMap2f(GL_MAP2_TEXTURE_COORD_2, 0, 1, 2, 2, 0, 1, 4, 2,
176 &tex[0][0][0]);
177 glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4,
178 &p[0][0][0]);
179 glMapGrid2f(grid, 0.0, 1.0, grid, 0.0, 1.0);
180 glEvalMesh2(type, 0, grid, 0, grid);
181 glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4,
182 &q[0][0][0]);
183 glEvalMesh2(type, 0, grid, 0, grid);
184 if (i < 6) {
185 glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4,
186 &r[0][0][0]);
187 glEvalMesh2(type, 0, grid, 0, grid);
188 glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4,
189 &s[0][0][0]);
190 glEvalMesh2(type, 0, grid, 0, grid);
191 }
192 }
193 glPopMatrix();
194 glPopAttrib();
195}
196
197/* CENTRY */
198void APIENTRY
199glutSolidTeapot(GLdouble scale)
200{
201 teapot(14, scale, GL_FILL);
202}
203
204void APIENTRY
205glutWireTeapot(GLdouble scale)
206{
207 teapot(10, scale, GL_LINE);
208}
209
210/* ENDCENTRY */
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